Headlight reflector



Jan. 6 1925. 1,522,387

F. PIASZEK HEADLIGHT REFLECTOR Filed Oct. 15, 1923 Patented Jan. 6,1925.

UNITED STATES FERDINAND IPIASZEK, OF SAGINAW, MICHIGAN.

HEADLIGHT REFLECTOR.

Application filed. October 13, 1923. Serial No. 668,374.

To all whom it may concern:

Be it known that I, FERDINAND PIASZEK, a citizen of the United States,residing at Saginaw, in the county of Saginaw and State of Michigan,have invented certain new and useful Improvements in HeadlightReflectors, of which the following is a specification.

This invention relates to a headlight reflector, and particularly to theconstruction of a reflector adapted to project the rays from anilluminating medium into a forward and downward path in advance of thereflector.

In previous constructions of conical reflectors the rays have beenconcentrated and projected forwardly in a light beam of considerableintensity but the rays from the upper portion of such a beam have a constant tendency to an upward pro ection which produces a glare and limitsthe amount of light concentrated upon the road in advance of the vehicleupon which the lamp is disposed, which results in a seriousinconvenience to an approaching driver and fails to properly illuminatethe path of travel of the vehicle.

The present invention comprises a novel and improved construction ofconical body having a portion of its lower wall provided with asupplemental reflecting surface disposed in the lower inclined wall inalignment with the source of illumination so that the light raystherefrom are directed to the curved supplemental reflecting surface andthence projected outwardly and downwardly from that portion of thereflector from .which they would be otherwise projected upward so thatthe area directly in front of the lamp has the main light rays projectedin a downward path.

Another object of the invention is to present an improved constructionof conical body terminating at its apex in a portion having a concentricwall and a sleeve disposed to surround said wall and provided with acentral collar to support a lamp socket in a plane parallel with theupper wall of the reflector which is disposed in a substantiallyhorizontal plane.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the drawing Figure 1 is a longitudinal vertical section of thereflector;

Figure 2 is a front elevation; and

Figure 3 is an enlarged detail section on line 3-3 of Figure l.

Like numerals refer to like parts throughout the several figures of thedrawing.

The numeral 10 designates the reflector which may be of any desired sizeand is of a generally conical configuration with its interior facehighly polished or provided with a reflecting surface throughout itsentire length. This conical body is arran ed so that the upper surface11 thereof is is posed in a substantially horizontal plane and the frontface 12 at a right angle thereto. v The lower segment 13 of thereflector is sharply inclined downward at an angle to the upper face 11and forms a Wall of greater length than the upper wall of thereflee-tor. The structure thus comprises a cone having its walls ofincreasing length from the apex from a point at the top of the cone whendisposed in a horizontal plane. The apex 1 1 of such cone is formed witha concentric portion 15 adapted to receive and support a lamp socket 16in any preferred manner in order to dispose the lamp 17 carried therebyin a substantially horizontal plane parallel with that of the uppersurface of the reflector. A desirable means for thus supporting thesocket comprises the sleeve 18 embracing the concentric portion 15 ofthe cone and provided with a collar 19 to support the lamp socket 16.This sleeve may be secured in position by any desired means such as theprojecting portions 22 which form an interlocked connection. The forwardportion 13 of the cone is also provided with an angular flange 20 bywhich the reflector is suitably secured within the usual lamp casing.

An important object of the present invention is to provide asupplemental reflecting surface in substantial alignment or in focuswith the lamp member 17 and this is accomplished by the depressedparabolic reflecting portion 21 which may be formed in the lowerinclined wall 13 of the reflector or attached thereto and is so disposedas as j reflector is disposed at the portion of the reflecting surfacefrom which an outward and upward ray is usually projected in a planewhich avoids the upper face of the reflector, with the result that thelight beam extends to a point above the lamp and produces the glarewhich the present invention avoids.

'By the construction and arran ement of parts herein disclosed theprojectionof direct upward rays from the lamp is practically eliminatedand all of the upper rays are caused to be reflected downwardly by theupper surface while the rays bel ow the center of the lamp are likewiseprojected at or below a horizontal plane by reflection from theparabolic surface and the inclined lower face.

In order to fully secure the desirable functions'just described, theparabolic reflector 21 may be formed elliptical or oval, with its longeraxis in a plane longitudinally of the cone.

It will be seen that the invention presents a Very simple, eflicient,and economically manufactured form of reflector adapted for generalapplication and constructed to prevent the direct upward projection oflight rays from an illuminating means disposed at the apex of theconical structure.

While the specific details of construction and the lines of projectionof the lightrays have been herein shown, still the invention is notconfined thereto as changes and alterations may be made withoutdeparting from the spirit of the invention as recited in the followingclaims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A headlight reflector comprising a .from in a parallel group.

body formed as an oblique cone having in vertical longitudinal sectionits upper element disposed in a substantially horizontal plane and itslower element inclined downwardly therefrom, said body being providedwith means to support a lamp adjacent to the upper element and alsobeing provided with a curved reflecting surface depending from thecontour of the plane of the inner face of the lower element-and inalignment with the source of light.

3. headlight reflector comprising a body formed as an oblique conehaving in vertical longitudinal section its upper element disposed in asubstantially horizontal plane and its lower element inclined downwardlytherefrom, said body being provided with means to support a lampadjacent to the upper element and also being provided -with a concaveparabolic reflecting surface depressed from the contour of the plane ofthe inner surface .of the lower element of the body to reflect raysoutwardly there- In testimony whereof I aflix my signature,

FERDINAND PIASZEK.

